Marshalls, based in Halifax, have added hard limestones and Italian porphyry to their range of natural stone paving products.

Marshalls are already the UK\'s biggest suppliers of Yorkstone paving and two years ago added a range of imported granite setts and cubes, as well as offering granite as bespoke features.

Now, as well as adding limestone and porphyry, which is available for any size of project, they have also added three new sandstones - High Moor, a hard Yorkstone that is predominantly buff but with distinctive veining; Mouselow, a gritstone varying from light brown/buff to light grey that has been used widely in London; Flappit, an ashlar quality sandstone with a consistent cream/buff colour that is ideal for masonry and restoration work.

The new products will be introduced at the External Works Exhibition being staged 30 October-1 November at the new ExCeL exhibition centre in London (where the Stone Show will be held in March next year).